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80426245 = 5313971307
BaseRepresentation
bin1001100101100…
…11010100000101
312121100002001211
410302303110011
5131042114440
611551451421
71664416564
oct462632405
9177302054
1080426245
1141442479
1222b26b71
131387c3c3
14a977bdb
1570d9eea
hex4cb3505

80426245 has 16 divisors (see below), whose sum is σ = 99952128. Its totient is φ = 62061120.

The previous prime is 80426231. The next prime is 80426257. The reversal of 80426245 is 54262408.

It is not a de Polignac number, because 80426245 - 213 = 80418053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60882 + ... + 62188.

It is an arithmetic number, because the mean of its divisors is an integer number (6247008).

Almost surely, 280426245 is an apocalyptic number.

It is an amenable number.

80426245 is a deficient number, since it is larger than the sum of its proper divisors (19525883).

80426245 is a wasteful number, since it uses less digits than its factorization.

80426245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 80426245 is about 8968.0680751208. The cubic root of 80426245 is about 431.6508470688.

The spelling of 80426245 in words is "eighty million, four hundred twenty-six thousand, two hundred forty-five".

Divisors: 1 5 31 155 397 1307 1985 6535 12307 40517 61535 202585 518879 2594395 16085249 80426245